package com.itheima.reggie.controller;


import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.service.CategoryService;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

/**
 * 分类管理
 */
@RestController
@RequestMapping("/category")
public class CategoryController {

    @Autowired
    private CategoryService categoryService;

    /**
     * 新增菜品分类和套餐分类
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody  Category category){
       categoryService.save(category);
       return R.success("新增分类成功");
    }
    /**
     * 分页查询 （使用MP分页插件）
     */
    @GetMapping("/page")
    public  R<Page> page(int page, int pageSize){

        //构造分页构造器
        Page pageInfo = new Page(page, pageSize);
        //构造条件构造器
        LambdaQueryWrapper<Category> queryWrapper = new LambdaQueryWrapper();

        //添加排序条件
        queryWrapper.orderByAsc(Category::getSort);

        //执行分页查询
        categoryService.page(pageInfo,queryWrapper);

        return R.success(pageInfo);
    }

    /**
     * 删除功能
     * 当分类下存在菜品时，删除失败
     */
    @DeleteMapping
    public R<String> delete(Long id){


        //categoryService.removeById(id);

        categoryService.remove(id);
        return R.success("分类信息删除成功");

    }

    /**
     * 修改功能
     *
     */
    @PutMapping
    public  R<String>  update(@RequestBody Category category){

        categoryService.updateById(category);
        return  R.success("修改信息成功");
    }


    /**
     * 根据条件查询分类数据
     * @param category
     * @return
     */
    @GetMapping("/list")
    public R<List<Category>>  list(Category category){      //下拉栏传入参数为Type
      //条件构造器
        LambdaQueryWrapper<Category> queryWrapper = new LambdaQueryWrapper<>();
      //添加条件
        queryWrapper.eq(category.getType()!=null,Category::getType,category.getType());
        //添加排序条件
        queryWrapper.orderByAsc(Category::getSort).orderByDesc(Category::getUpdateTime);
        List<Category> list = categoryService.list(queryWrapper);
        return R.success(list);

    }

}
